Question 1 :
When light enters the eyes, most of the refraction occurs at the :
Question 3 :
Clouds are white because of light scattering off of water droplets.
Question 4 :
The splitting of white light into several colours on passing through a glass prism is due to -
Question 5 :
Mark the WRONG statement:<br/>When two plane mirrors are placed parallel to each other: <br/>
Question 7 :
Splitting of light into its constituent colours is known as :<br/>
Question 9 :
When light rays enter the eye, most of the refraction occurs at the:<br/>
Question 10 :
The cells in the retina that are able to distinguish between different colours are :
Question 13 :
Which of the following part protects the eye and gives it shape?
Question 14 :
The phenomenon due to which light splits up into seven colours, on passing through an equilateral prism is called :
Question 16 :
Fill in the blank:<br/>Plane mirrors are arranged _______ to each other to get infinite number of images.
Question 17 :
Which of the following is true for vitreous humour?<br>a. It is a clear gel like fluid.<br>b. It is present between the lens and the cornea.<br>c. It maintains the shape of the retina.<br>d. It provides nutrition to the eye.
Question 18 :
Assertion: A normal human eye can clearly see all the objects at the different distance.
Reason: The human eye has the capacity to suitably adjust the focal length of its lens to a certain extent.
Question 19 :
Some special kaleidoscopes which doesn't include objects at all are known as:<br>
Question 21 :
Which of the following optical phenomena is used in cinematography or movie projectors?<br>
Question 25 :
The colour are characterised by which of following character of light.
Question 26 :
A parallel beam of light falling on the eye gets focused on the retina because of refraction at
Question 29 :
Image forming light sensitive screen of the eye is known as __________ and it contains __________.
Question 30 :
Fill in the blank spaces by choosing the correct words from the list given below:<br/>List : yellow spot, principal focus, less, shutter, more.The small but very light sensitive area on the retina is called __________.